Tension device for yarns



April 12, 1932. G, KERSHAW 1,853,686

TENSION DEVICE FOR YARNS Filed May 22, 1929 2 Sheets-Sheet l A ril 12, 1932. G KERSQAW 1,853,686

TENSION DEVICE FOR YARNS Filed May 22; 1929 2 Sheets-Sheet 2 Patented Apr. 12, 1932 GRINDROD KEESHAW, OF WHITwORTI-i, ROCHIDALE, ENGLAND mansion DEVICE ron YARNS Application filed May 22, 1929, Serial No. 365,093, and in Great This invention of improvements in devices for applying drag or tension to or cleaning yarns or threads being wound or unwound relates to tension devices or yarn cleaners of the kind comprising an annular disc or equivalent body which presents an annular portion for contact with yarn or thread applied around a peg, projection or pivot fixing the position of or more usually limiting the eccentric movement of the annular disc or equivalent body, is provided to bear with its own or its own and added weight upon and to be revolved by yarn or thread to be subj ected to drag or tenslon or subjected to drag or tension and cleaned in being made to revolve the annular d1sc or equivalentbody 1n passing between it and a supporting table or surface provided on a part which in different forms of the devices and different circumhis - supporting tables or surfaces.

stances of use is stationary or mounted to be moved without being revoluble.

In tension devices or yarn cleaners of the said kind as hitherto provided, the annular discs or equivalent bodies for bearing upon and being revolved by yarn or thread have been mounted to be revoluble, usually with some freedom for eccentric movement around pegs or the like projecting from the In some cases the parts st tionary or movable and held against or incapable of revolution as aforesaid have been formed with openings for the escape of matter separated from yarn or thread passed between them and the co-operating annular discs or equivalent bodies employed to bear'upon and to be revolved by yarn or thread. In tension devices or yarn cleaners of the said kind hitherto provided, even in the cases in which the supporting tables or surfaces are provided with openings, the tables or supporting surfaces for yarn or thread have presented, in parts around the pegs, projections, pivots or sleeves around which are applied the annular discs or equivalent bodies for bearing upon yarn or thread, surfaces on which matter sep arated from yarn or thread can accumulate, especially in the case of yarns or threads wound or unwound when damp, and by accumulating, eventually prevent the annular Britain May as, 1928 discs or equivalent bodies for'bearing on yarns or threads from acting in the manner intended and from fulfilling their function.

This invention, consisting in 1 improvements in tension devices or yarn cleaners of the kind aforesaid, has for its object to provide tension devices oryarn cleaners of that i kind which will ensure that matter separated from yarn or thread shall escape from beneath the annular discs or equivalent bodies for bearing on and being revolved b'y yarns or threads. v i

This invention consists in tension devices or yarn cleaners of the said kind in which for the ready escape of matter separated '65 fromyarn or thread, the supporting tables or surfaces themselves formed on stationary parts or on movable parts held against or incapable of revolution, are formed with holes or openings around andsurrounding the pegs or projections or pivots fixing the position or, more usually limiting the eccentric movement of the annular discs or equivalent bodies for bearing on and being revolved by yarns or threads.

' This inventionconsists further in annular discs or equivalent bodies for bearing on and being revolved by yarns or threads which in order to facilitate the escape from beneath them of matter separated from yarn or thread are formed or provided with sleeves to extend downwardly or through holes or openings provided for the escape of matter separated from yarn or thread as hereinbefore mentioned in reference to this invention around the pegs, projections or pivots around which they are mounted. This invention consists further in pegs, projections or pivots which are made in, the form of stems with heads or collars and shaped as may be appropriate to the construction of the tension devices. or yarn cleaners in which they are to be used, to present heads with stems extending at one side only or to present collars with stems or projections at opposite sides and are adapted tobe inserted through or in holes in supporting parts and preferably made capable of easy insertion through or in, and 1 removal from such holes and being inserted through or in the holes present stems forming pegs, projections or pivots for fixing the position of, and usually for limiting the eccentric movement of annular discs or equivalent bodies for bearing on and being revolved by yarn or thread in tension devices or yarn cleaners provide wit-h holes as hereinbefore mentioned in reference to this invention for the escape of matter separated from yarn or thread in supporting parts or having revoluble annular discs or equivalent bodies with sleeves to extend downwardly into or through holes provided for the escape of matter separated from yarn or thread.

In the drawings, Figs. 1, 2 and 3 are respectively a side elevation, plan and vertical section through one form. of tension device or yarn cleaner provided according to this invention. Figs. 4 and 5 are respectively a diametral section and plan of the annular disc or body employed therein. Fig. 6 is a side elevation and Fig. 7 a plan with parts broken and shown in section for greater clearness showing another form of tension device or yarn cleaner provided according to this invention. Figs. 8 and 9 are respec tively' a side elevation and plan showing separately the table or surface for support ing yarn or thread used in the device or cleaner shown in Figs. 6 and 7 Fig. 10 is a diametral section of the annular disc or body also used in the device or cleaner shown in Figs. 6 and 7 Fig. 11 is a side elevation and Fig. 12 a plan and Fig. 13 is a vertical section of another form of tension device constructed according to this invention. Fig. 14 shows another form of peg which may be employed instead of the peg shown in Figs. 11, 12 and 13. Fig. 15 is a side elevation of another form of tension device constructed according'to the invention.

The planes on which the sections in Figs. 8, 4, 7, 10 and 13 are taken are indicated respectively by the line A, A of Figs. 1 and 2', B, B of Fig. 5, C, Cof Fig. 6, D, D of Fig. 7 and E, E of Figs. 11 and 12. In Fig. 3, a part in front of the plane of section is indicated by long and short dotted lines.

In Figs. 3 and 13, some parts out by the plane of section are shown in side elevation for greater clearness.

The same characters of reference indicate corresponding parts in all the figures of the drawings.

In one illustrative embodiment of the invention forming in itself part of the invention and shown in Figs. 1, 2', 3, 4 and 5, a foundation part a to be stationary, or while being movable to be held against or incapable of revolution, is formed on the side to be the upper in use with a fiat surface a to form a table or support against which yarn or thread may be passed and to support an annular revoluble disc 6 for bearing on and being revolved by yarn or thread made to pass over the table or support a The annular disc 6 which is provided on the face to be the lower in use with a central sleeve 5 to extend downwardly, is made to present in that face an annular hollow around the sleeve 6 and an annular prominence near the margin. In the face to be upwards in use the annular disc Z) is formed wlth an upwardly extending wall 6 and may be used either to bear on yarn or thread with its own weight or as indicated only in Fig. 3 with the addition within the upwardly extending wall 6 of one washer c or the. like or more to give additional weight in the manner usual with tension devices or yarn cleaners of the kind to which this invention relates. The foundation part a, presenting the table or supporting surface a is formed with a hole (Z presenting its upper end in that surface a and of a diameter a little less than that of the annular prominence b of the annular disc I).

To the foundation part a at one side of the place in which the annular disc 6 is intended to work is secured an arm 6 which extending partly around the place for the an nular disc 6 extends obliquely upwards and. eventually inwardly to present a projecting part 6 over the hole (Z in the table or supporting surface a and in that projecting part c is formed with a hole co-axial with the hole (Z in the table or supporting surface a and in the hole in the projecting part c is inserted a pin f with a head to bear on the projecting part c and a stem to extend through the hole therein and into the hole (I in the foundation part a so that being passed through the hole in the annular disc 5 and any washer 0 or the like therein, it will limit the eccentric movement thereof, while being readily removable to allow the annular disc Z) to be removed and replaced or changed and weight to be added or removed to any annular disc 7) in use at any time. The sleeve 5 of the annular disc 6 extending into the hole (Z in the foundation part a guides into that hole (Z any matter separated from yarn or thread and brought or coming against the sleeve 6 Preferably the pin 7 is made not to extend below the lower edge of the central. sleeve 7) of the annular disc 6 in order that it may not afford an exposed surface for the accumulation of dirt. The arm 6 and the arm g formed on the foundation part a serve in an ordinary manner for the guidance of yarn being introduced into the tension device or yarn cleaner. The foundation part a is shown as formed in an ordinary manner with a hole 71 and provided with a set-screw z enabling it to be secured to a rod in the ordinary manner.

The tension device shown by Figs. 6, 7, 8, 9 andv 10 is a modification of that shown by Figs. 1, 2, 3, 4 and 5, in which the foundation part a instead of being formed with a surface a to receive contact of yarn or thread is provided with an annular removable collar j inserted in a foundation part a and provided with a hole cl and forming a supporting surface or table a for contact of yarn or thread by its upper end which is formed as a flange to rest upon the upper surface of the foundation part a.

In another illustrative embodiment of the invention forming in itself part of the invention, shown by Figs. 11, 12 and 13 of the accompanying drawings, a foundation part a generally similar to that hereinbefore described is formed or provided on the side to be the lower in use with an arm is which, extending below the hole (Z in the table or supporting part a is furnished with a pin Z made to extend up through the hole d to limit the eccentric movement of an annular disc 1) similar to that employed in the illustrative embodiment of the invention already described herein.

The pin Z is shown as provided with a collar Z to bear upon the upper surface of the arm in which it is secured by means of a grub-screw m screwed into a screw-threaded hole in the arm and formed at its upper end with a lateral arm Z to prevent the annular disc 22 or any washer 0 or the like therein from bein accidentally removed from the in Z.

Fig. 14 shows a pin Z with a flange Z adapted to be placed in the hole in the arm in and to bear upon it with the flange Z The tension device shown in Fig. 15 is a modification of that shown in Figs. 11, 12, 13 and 14:, differing in that the pin Z is inserted and riveted in the arm is and furnished on its upper end with a collar n secured in position upon it by means of a grub-screw 0 screwed in a screw-threaded hole in the collar n in order that the collar n may prevent the annular disc I) or any washer c or the like therein from being accidentally removed from the pin Z.

In the claims following the word yarn is used to mean yarn or thread.

What I do claim as my invention and desire to secure by Letters Patent is 1. A yarn tensioning device comprising a supporting body provided with a supporting surface for receiving contact of yarn and a hole therethrough, a pivot peg carried by said body extending into said hole and leav ing surrounding space between it and the wall of said hole and a revoluble pressing body having an annular portion for contact with the yarn and a sleeve to extend into the hole in the supporting surface, said sleeve having a bore larger in diameter than said pivot peg for eccentric movement about said peg.

2. A yarn tensioning device comprising a supporting body provided with a hole, a colrounding space lar inserted into the hole of said supporting body and provided with a supportlng surface for receiving contact of yarn, a pivot peg carried by said supporting body extending into said collar and leaving surrounding space between it and the inner wall of the collar and a revoluble pressing body having an annular portion for contact with the yarn and a hole larger in diameter than the pivot peg for eccentric movement about said peg.

3. A yarn tensioning device comprising a supporting body provided with a hole, a

collar inserted into the hole of said supporting body and provided with a supporting surface for receiving contact of yarn, a pivot peg carried by said supporting body extending into said collar and leaving surrounding space between it and the inner wall of the collar and a revoluble pressing body having an annular portion for contact with yarn and a sleeve to extend into the hole in said supporting surface, said sleeve having a bore larger in diameter than said pivot peg for eccentric movement about said peg.

1. A yarn tensioning device comprising a supporting body provided with a supporting surface for receiving contact of yarn and a hole therethrough, said supporting body being also provided with a downwardly extending part projecting under said supporting surface and having a hole through it in alinement with the hole in the supporting surface, a pivot peg which is provided with a collar to rest on said downwardly extending part and with a stem which is passed through said hole therein and which extends into the hole in the supporting surface and leaving surbetween it and the wall of said last named hole and a revoluble pressing body having an annular portion for contact with yarn and a hole larger in diameter than said pivot peg for eccentric movement about said peg.

In testimony, that I claim the foregoing as my invention, I have signed my name this tenth day of May, 1929.

GRINDROD KERSHAW. 

